Canadian Forest Service Publications
A summary of current techniques used for sampling spruce budworm populations and estimating defoliation in eastern Canada. 1980. Sanders, C.J., Compiler. Canadian Forestry Service, Great Lakes Forest Research Centre, Sault Ste. Marie, Ontario. Information Report O-X-306. 33 p. (includes: appendix).
Issued by: Great Lakes Forestry Centre
Catalog ID: 8982
Availability: PDF (download)